Water Millettia barteri moderately during the growing season, allowing the soil to dry slightly between waterings. Reduce watering significantly in cooler months.

Ensure good drainage to prevent waterlogging, which can lead to root rot. Overwatering is a common mistake.

Prune Millettia barteri after flowering to maintain its shape and size, and to encourage new blooms. Remove any dead, damaged, or crossing branches. Light pruning can be done at any time of year to remove errant growth.

Propagate Millettia barteri from semi-hardwood cuttings taken in late summer or early autumn. Dip cuttings in rooting hormone and plant in a well-draining medium.

Maintain consistent moisture and warmth until roots develop.

Repot Millettia barteri every 2-3 years, or when it becomes root-bound, preferably in spring before new growth begins. Use a well-draining potting mix.

Choose a pot only slightly larger than the current one to avoid overwatering.